Displaying 20 results from an estimated 4000 matches similar to: "Guidance on Linux Kernel/OS Programming for Beginners"
2008 Sep 24
3
Telnet & ssh connection limit and idle timeout
Dear all,
*
I am running centos 4 update 5. I want to limit user connection(maximum 10
simultaneous connection are only allowed) to server
(for telnet & ssh sessions).In the mean time i like to remove all dead and
idle connections(ssh & telnet session) of more that 24 hours.
Any one guide me how to do this.
Regards
Lingu
*
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2010 Jul 09
2
difference between stickybit SUID and SGID
i had a small query , whant is the difference between stickybit SUID and
SGID , is there any proper site where i can get a clear understanding .
--
Regards
Agnello D'souza
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2008 Sep 10
3
Centos 5 Virtualization
Hello list,
I am very much new to Virtualization.But i want to study and test
Virtualization.Can any one suggest me the web links from where i
can start. I want to learn from basic to advanced concepts of VT.
Thanks in advance for your reply
2008 Jun 09
3
TFP inside firewall
Hi,
I have a setup where the tftp server is inside the firewall.
Now the issue is tftp client send request on dynamic udp port. Can anyone
give some idea, how i can bind the fixed port for client udp requests ?
Otherwise i hope, it is not a solution that i will open all port related to
UDP in the firewall.
Regards,
lingu
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2010 Aug 24
3
CENTOS DHCP Server and windows computer/host name ISSUE
Hi list,
We are running few Centos5.4 and windows 2003 instance on CENTOS XEN
virtualized environment , all the guest are getting the IP/NETWORK/GATEWAY
setting from the DHCP Server running on CENTOS 5 server and the DNS
configured on the windows 2003 server.
All of the CENTOS Guests are getting the IP and the host name as per the
DNS forward look up configured. For example If the CENTOS
2008 Jun 09
1
Slow gfs performance
HI,
Sorry for repeating same mail ,while composing that mail i mistakenly typed
the send button.I am facing problem with my gfs and below is the running
setup.
My setup
Two node Cluster[only to create shared gfs file system] with manual fencing
running on centos 4 update 5 for oracle apps.
Shared gfs partition are mounted on both the node[active-active]
Whenever i type df -h command it
2008 Jul 30
1
Unable to write video dvd using k3b
Hi,
I download dvd movie files from torrent.It is like below
-rw-r--r-- 1 root root 1048614912 2008-07-24 16:49 VTS_01_1.VOB
-rw-r--r-- 1 root root 538210304 2008-07-24 16:52 VTS_01_2.VOB
File command on above giving the below ouput.
file VTS_01_1.VOB
VTS_01_1.VOB: MPEG sequence, v2, program multiplex
file VTS_01_2.VOB
VTS_01_2.VOB: MPEG sequence, v2, program multiplex
When i opened any
2008 Nov 15
1
Oracle start up script issue with RHEL3 Cluster
Hi all
I am running two node active/passive cluster on RHEL3U8-64 bit
operating system for my oracle 9i database.I am facing issue when
cluster fail over to node 2 my oracle start up script not starting up
even though i configured start up script in my cluster configuration
but if i type clustat on node 2 it shows service is started. If i
shift the service manually from node 2 to node 1 or even
2008 Aug 21
5
General Linux query
HI,
This is more general linux related topic , i want to know few basic
things.
1) How file systeem get corrupted on linux?
2) why,when and how fsck to be run without lossing data?
3) Is there is any other tool other than fsck available for file system
check
.
4) what are all the precaution to be made to prevent file system
corruption.
5) why & when the system will get hanged
2008 Sep 04
3
swap memory crash
Dear all,
I am getting below syslog error on my oracle database server running on
RHEL4U5. During this time my swap shows zero on both available and free in
the top command output , result in total system hang. can any one guide me
how to fix this issue of memory and exactly what this error indicates??
ERROR FROM SYSLOG
2010 Jul 18
3
2X app server alternatives
Does anyone know any oss alternatives to 2x aplication server ?
Regards,
Silviu Hutanu
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2008 Jun 10
10
School Server Setup
Hello All!!!
I was wondering if you can help me little bit....
I am trying to help (voluntary service) a country side school
(Aboriginal community) in Northern Queensland Australia setup lab
infrastructure, it's a very remote school and they don't have enough
funds to go commercial
The school has only till grade 6
They have 25 machines that was bought out of the
2006 Apr 23
1
Question about bicreg
Dear Adrian and Ian (and r-helpers),
I encountered a curious result in developing an example using the bicreg
function in the BMA package: I noticed that pairs of models with equal R^2
and equal numbers of predictors had nevertheless different BIC values.
Looking at the bicreg function, the definition of BIC appears to be the
usual one, or close to it [bic <- n * log(1 - r2/100) + (size - 1) *
2010 Jul 24
1
KVM iptables rules
After I installed kvm I noticed that some rules are appended automatically
by some tools that come with kvm packages(I installed all KVM group with
yum) .
The problem is that after I appended my rules I and used the
/etc/init.d/iptables script to save changes in /etc/sysconfig/iptables I saw
that after restarted the machine that tool appended the rules once again ...
so now I have double entries
2007 Jul 29
1
Curious why this doesn't work. (has_many, belongs_to)
Two Models.
class Gm < ActiveRecord::Base
belongs_to :pool
# mode code here.
end
class Pool < ActiveRecord::Base
has_many :gms
# mode code here.
end
Testing code through the console.
>> gm_list.each{ | gm | puts " GM name: #{ gm.user_name } belongs to Pool: #{ gm.pool.pool_name } " }; nil
GM name: John belongs to Pool: RHP 07-08 Season - Career League
GM name:
2008 Jun 14
3
RHDS ON CENTOS 5 for squid authentication
Hi,
I AM RUINING squid PROXY ON CENTOS 5 USING SQUID AND SQUIDGUARD.CAN ANY
ONE HELP ME HOW TO INTEGRATE RHDS WITH SQUID AND SQUIDGUARD FOR user
AUTHENTICATION.
Regards,
lingu.
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2008 Oct 14
3
Squid Number of hits
Dear all,
I am running squid on centos 5.Is there is any tool to calculate
number of ip's hit the server for month wise.
Even any command to find out the number of hits is also ok.
Regards,
Lingu
2012 Oct 05
1
Setting the desired reference category with contr.sum
Hi,
I have 6 career types, represented as a factor in R, coded from 1 to 6. I
need to use the effect coding (also known as deviation coding) which is
normally done by contr.sum, e.g.
contrasts(career) <- contr.sum(6)
However, this results in the 6th category being the reference, that is being
coded as -1:
$contrasts
[,1] [,2] [,3] [,4] [,5]
1 1 0 0 0 0
2 0 1 0
2011 Jan 23
2
Problem with combined two data frame.
Dear All.
I have some problem with combined two data frame.
....
I have first data frame ..
GPAX THAI MATH SCINCE SOCIAL HEALT ART CAREER LANGUAGE
1227 2.99 3.32 2.50 2.64 3.05 3.60 3.72 3.57 2.62
1704 2.81 2.56 2.48 2.86 3.22 3.19 3.55 3.20 2.51
617 2.18 1.90 1.97 2.06 2.38 3.50 3.54 2.33 1.70
876 2.82 3.14 2.73 2.46 2.71 3.11 3.04 3.24 2.90
2011 Mar 11
8
Help Regarding Amazon S3 and Career Wave along with Rspec
hello Guys,
i would like to know some details regarding how to implement AMAZON S3
with Career Wave in Rails 3.0.3 and i have to write Rspec test Cases
as well . Actually i already have code which is implemented with
Career Wave its a image uploading code and i need to change that code
on AMAZON S3. Can you guys help to me to make those changes and in
writing RSpec test Cases.Its really important